CODEWITHSUNDEEP
django
Hasnain
Hasnain

Reputation: 679

What does request.POST.get method return in Django?

What does request.POST.get("a") return while "a" is the reference to following html

label for = "a">ADDED ITEMS:</label>
<input hidden type="number" name="a" id="a">

def myfunc():

if request.method == "POST":
    a = request.POST.get("a");
    obj = TransferedItems(item_id = a);
    obj.save();
    return HttpResponse("sent")
else:
    return HttpResponse("form submission failed")

I am new at Django and I am unable to find what does request.POST.get return. Please guide me on my question.

Upvotes: 0

Views: 2866

Answers (2)

Jaap Joris Vens
Jaap Joris Vens

Reputation: 3560

Django's request.POST is a dictionary-like object, which means that its get() method behaves exactly like the regular dict's get() method:

get(key[, default])

Return the value for key if key is in the dictionary, else default. If default is not given, it defaults to None, so that this method never raises a KeyError.

So, to answer your question, request.POST.get("a") either returns the value of a, which is always a string (although it can be an empty string!) or the value None. The following code tests which of these possibilities is the case:

a = request.POST.get("a")

if a is None:
    return HttpResponseBadRequest("No key `a` present in POST data")

if a == "":
    return HttpResponseBadRequest("Empty string supplied for `a` in POST data")

TransferedItems.objects.create(item_id = a)

return HttpResponse("sent")

Upvotes: 1

user17526366
user17526366

Reputation:

It returns the value of the field with name a that your sending from HTML. If the value doesn't exists, it returns None

Upvotes: 1

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